METHOD FOR TOMOGRAPHIC RECONSTRUCTION WITH NON-LINEAR DIAGONAL ESTIMATORS
摘要
Techniques for tomographic reconstruction using non-linear diagonal estimators are disclosed. In a preferred embodiment, tomographic data from a tomographic device is decomposed in a wavelet vector family. Regularization of the tomographic data is accomplished by performing a thresholding operation on coefficients of the decomposed data. The regularized data is reconstructed into image data that may be displayed. In another preferred embodiment, a wavelet packet vector family is used to decompose the tomographic data. The wavelet packet is selected from a dictionary of wavelet packets using the best basis algorithm.
申请公布号
WO0184500(A3)
申请公布日期
2002.05.30
申请号
WO2001US13737
申请日期
2001.04.30
申请人
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK;KALIFA, JEROME;LAINE, ANDREW;ESSER, PETER, D.